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江淮、黄淮、西北等地区将进入玉米螟虫害盛期
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江淮、黄淮、西北等地区将进入玉米螟虫害盛期
根据各地春季玉米螟冬后基数调查结果,今年大部地区百秆活虫量低于常年和上年,结合气象条件等因素综合分析,预计一代玉米螟在新疆北部、东北地区大部、黄淮海地区中等发生,其他地区偏轻发生,全国一代玉米螟发生约1.3亿亩。玉米螟越冬代成虫羽化盛期,东北地区北部较常年偏早2~5天,东北地区南部较常年偏晚2天,其他各地区与常年接近或者偏早或偏晚在5天以内。预计6月中旬至7月末,江淮、黄淮、西北、华北、东北将陆续进入一代幼虫为害盛时期。
Insecticides China News 201806(Chinese version)
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